您好，J721E这个处理器配置SDK７.２版本的运行的时候，发现比标准的时间快了大约１.２倍，时钟源使用的是默认配置，我们想得到GTC的输入源的时钟频率值。谢谢！
Hello, when the processor J721E is configured with sdk7.2, we found that the GTC time is about 1.2 times faster than the standard time. The clock source uses the default configuration. We want to get the clock frequency value of the GTC input source. thank you!
